Which expression is equivalent to the following complex fraction? x/x-3/x^2/x^2-9

a) x-3/x
b) x+3/1
c) x+3/x
d) x/x+3

C)

Step-by-step explanation:

The given expression is

We rewrite to obtain:

Multiply the first fraction by the reciprocal of the second to get;

Factor the numerator using difference two squares;

Cancel out the common factors to get;

This simplifies to;